public class TinkerGraph.TinkerGraphEdgeFeatures extends Object implements Graph.Features.EdgeFeatures
FEATURE_ADD_EDGES, FEATURE_REMOVE_EDGES, FEATURE_UPSERTFEATURE_ADD_PROPERTY, FEATURE_ANY_IDS, FEATURE_CUSTOM_IDS, FEATURE_NULL_PROPERTY_VALUES, FEATURE_NUMERIC_IDS, FEATURE_REMOVE_PROPERTY, FEATURE_STRING_IDS, FEATURE_USER_SUPPLIED_IDS, FEATURE_UUID_IDS| Modifier and Type | Method and Description |
|---|---|
boolean |
supportsCustomIds()
Determines if an
Element has a specific custom object as their internal representation. |
boolean |
supportsNullPropertyValues()
Determines if an
Element allows properties with null property values. |
boolean |
willAllowId(Object id)
Determines if an identifier will be accepted by the
Graph. |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitproperties, supportsAddEdges, supportsRemoveEdges, supportsUpsertsupportsAddProperty, supportsAnyIds, supportsNumericIds, supportsRemoveProperty, supportsStringIds, supportsUserSuppliedIds, supportsUuidIdspublic boolean supportsNullPropertyValues()
Graph.Features.ElementFeaturesElement allows properties with null property values. In the event that
this value is false, the underlying graph must treat null as an indication to remove
the property.supportsNullPropertyValues in interface Graph.Features.ElementFeaturespublic boolean supportsCustomIds()
Graph.Features.ElementFeaturesElement has a specific custom object as their internal representation.
In other words, if the value returned from Element.id() is a type defined by the graph
implementations, such as OrientDB's Rid, then this method should be return true.
Note that this feature is most generally used for determining the appropriate tests to execute in the
Gremlin Test Suite.supportsCustomIds in interface Graph.Features.ElementFeaturespublic boolean willAllowId(Object id)
Graph.Features.ElementFeaturesGraph. This check is different than
what identifier internally supports as defined in methods like Graph.Features.ElementFeatures.supportsNumericIds(). Those
refer to internal representation of the identifier. A Graph may accept an identifier that
is not of those types and internally transform it to a native representation.
Note that this method only applies if Graph.Features.ElementFeatures.supportsUserSuppliedIds() is true. Those that
return false for that method can immediately return false for this one as it allows no ids
of any type (it generates them all).
The default implementation will immediately return false if Graph.Features.ElementFeatures.supportsUserSuppliedIds()
is false. If custom identifiers are supported then it will throw an exception. Those that
return true for Graph.Features.ElementFeatures.supportsCustomIds() should override this method. If
Graph.Features.ElementFeatures.supportsAnyIds() is true then the identifier will immediately be allowed. Finally,
if any of the other types are supported, they will be typed checked against the class of the supplied
identifier.willAllowId in interface Graph.Features.ElementFeaturesCopyright © 2013–2022 Apache Software Foundation. All rights reserved.